STABILITY OF MANGANESE DELAY MIXTURES
Abstract
The storage stability of Mn-PbCrO5-BaCrO4 delay mixtures was investigated. When these mixtures were kept dry their burning times did not increase more than 5% during 8 wk storage at 165 F. Some batches did not change their burning times when stored without sealing at 100% RH, 165 F. Other batches deteriorated rapidly under the same conditions. This wide variation in storage stability is due to differences in the Mn powder used in preparing them, and apparently, is connected with the Mn crystallite size and surface oxidation. Pretreatment of the Mn is not recommended for improving the stability of these mixtures. Recommendations for further work include a study of crystallite size and methods of preparing Mn powder free of surface oxides. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 27, 1961
- Accession Number
- AD0268079
Entities
People
- M.l. Couch
- R.e. Mcintyre
- R.h. Comyn
Organizations
- Harry Diamond Laboratories